GTD 111 Superalloy Chemical Composition and Mechanical Properties

GTD 111 Alloy Spot Lights
Heat Treatment	Solution treatment: 1125-1175 °C Aging treatment: 845 °C for ~24 hrs
Filler Metals	Waspaloy filler Proprietary GTD-111 filler
Temperature Capability	High-temperature service (900-1100 °C). Creep resistance up to ~1050 °C
Density	8.34 g/cm3
Melting temperature	1699 °C
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Table of Content

GTD 111 Superalloy Supplier in India, Refer Chemical Composition

GTD 111 Alloy Chemical Composition

Alloy	P	S	Cr	B	W	Mo	Al	Ni	C	Si	Ti	Fe
GTD111	≤0.005	≤0.010	13.5-14.3	0.007-0.02	3.5-4.1	1.3-1.7	2.8-3.4	Bal	0.07-0.12	≤0.20	4.6-5.2	-

Material GTD111 Temperature

Environment	Temperature (°C)
Air (oxidizing)	1000°C
Hot corrosion - Type I (Na₂SO₄ + V₂O₅)	1000°C
Hot corrosion - Type II (sulfidation)	1000°C
Cyclic oxidation	950-1050°C
Combustion gas environment	1000°C

Tensile Test Results at 760°C for GTD111

No.	Tensile Strength (MPa)	Yield Strength (MPa)	Fracture Location
GTD111 non-HIP-a	1,026	872	Welding
GTD111 non-HIP-b	1,092	936	Welding
Average	1,059.0	904.0	-
GTD111 HIP-a	1,098	870	Welding
Average	1,098.0	870.0	-

GTD-111 Superalloy Microstructural Evolution During High-Temperature Aging

Condition	Size (µm²)		Vickers hardness (HV-2)		Fraction per area (%)
Condition	Average	CI^a	Average	CI^a	Average	CI^a
Virgin	0.202	±0.024	417	±5	26.4	±1.2
250 h	0.437	±0.142	341	±7	34.1	±4.6
500 h	0.643	±0.173	360	±4	34.5	±2.9
750 h	0.480	±0.114	346	±12	32.3	±2.9
1,000 h	0.361	±0.095	339	±3	33.4	±3.5
1,250 h	0.800	±0.194	332	±6	32.6	±5.2
1,500 h	0.604	±0.076	328	±10	33.4	±2.9
1,750 h	0.979	±0.143	310	±3	28.6	±3.1
2,000 h	0.995	±0.029	320	±5	35.2	±3.1

Nickel Based GTD111 Mechanical Properties

Yield Strength, MPa	Tensile Strength, MPa	ELongation, %	Hardness, HRB
910	1140	6	-

Material GTD111 Physical Properties

Density, g/cm3	Melting Point, ℃
8.34	1245-1350

GTD 111 Properties

GTD 111 Superalloy Equivalent Grades

ASTM	GB	GOST	UNS	DIN	W.Nr.	NF	BS	JIS	SS
GTD111	DZ411	-	-	-	-	-	-	-	-

GTD 111 Alloy Applications

GTD 111 Superalloy Heat Treatment Conditions

Primary Precipitate Aging	Solution Treatment	Secondary Precipitate Aging
925°C / 1 hr (AC)	1125°C / 2 hrs (AC)	845°C / 24 hrs (AC)
1055°C / 1 hr (AC)	1125°C / 2 hrs (AC)	845°C / 24 hrs (AC)

Thermal Conductivity of GTD 111 Alloy

GTD 111 Material Specific Heat & Thermal Expansion

Charpy Impact (unnotched, ft·lb) of GTD 111 Superalloy

Grain Size	Before	After 1200°F		After 1500°F		After 1700°F
Grain Size	Exposure	500 hr	1000 hr	500 hr	1000 hr	500 hr	1000 hr
Coarse (≥1/4 in.)	37	54	38	20	16	17	14
Fine (≤1/8 in.)	56	44	30	20	13	14	10

GTD-111 Deformation

Statics Analysis of GTD 111 Material

Material	Equivalent Stresses (MPa) Max	Equivalent Elastic Strain (Max)	Deformation (mm) Max
GTD-111	51.718	4.0277 × 10⁶	5.796 × 10⁻⁶

Filler Metals for GTD-111 Superalloy

Type	Filler Metal
Ni-Cr-Mo Alloy	AMS 5837
Ni-Fe-Cr Superalloy	AMS 5798
Ni-Cr-Co Alloy	Waspaloy Filler (AMS 5828)
Ni-Cr-Co-Ti-Al Alloy	GTD-111 Matching Filler (OEM Proprietary)
Ni-Cr-Mo-W Alloy	Haynes 230 Filler

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